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deck module

Layer (Layer)

Configures a deck.gl layer for rendering on a map. Parameters passed here will be specific to the particular deck.gl layer that you are choosing to use. Please see the deck.gl Layer catalog (https://deck.gl/docs/api-reference/layers) to determine the particular parameters of your layer. You are highly encouraged to look at the examples in the pydeck documentation.

Source code in geemap/deck.py
class Layer(pdk.Layer):
    """Configures a deck.gl layer for rendering on a map. Parameters passed here will be specific to the particular deck.gl layer that you are choosing to use.
    Please see the deck.gl Layer catalog (https://deck.gl/docs/api-reference/layers) to determine the particular parameters of your layer.
    You are highly encouraged to look at the examples in the pydeck documentation.
    """

    def __init__(self, type, data=None, id=None, use_binary_transport=None, **kwargs):
        """Initialize a Layer object.

        Args:
            type (str):  Type of layer to render, e.g., HexagonLayer. See deck.gl Layer catalog (https://deck.gl/docs/api-reference/layers)
            data (str, optional): Unique name for layer. Defaults to None.
            id (str | dict | pandas.DataFrame, optional): Either a URL of data to load in or an array of data. Defaults to None.
            use_binary_transport (bool, optional): Boolean indicating binary data. Defaults to None.
        """
        super().__init__(type, data, id, use_binary_transport, **kwargs)

__init__(self, type, data=None, id=None, use_binary_transport=None, **kwargs) special

Initialize a Layer object.

Parameters:

Name Type Description Default
type str

Type of layer to render, e.g., HexagonLayer. See deck.gl Layer catalog (https://deck.gl/docs/api-reference/layers)

required
data str

Unique name for layer. Defaults to None.

None
id str | dict | pandas.DataFrame

Either a URL of data to load in or an array of data. Defaults to None.

None
use_binary_transport bool

Boolean indicating binary data. Defaults to None.

None
Source code in geemap/deck.py
def __init__(self, type, data=None, id=None, use_binary_transport=None, **kwargs):
    """Initialize a Layer object.

    Args:
        type (str):  Type of layer to render, e.g., HexagonLayer. See deck.gl Layer catalog (https://deck.gl/docs/api-reference/layers)
        data (str, optional): Unique name for layer. Defaults to None.
        id (str | dict | pandas.DataFrame, optional): Either a URL of data to load in or an array of data. Defaults to None.
        use_binary_transport (bool, optional): Boolean indicating binary data. Defaults to None.
    """
    super().__init__(type, data, id, use_binary_transport, **kwargs)

Map (Deck)

The Map class inherits pydeck.Deck.

Returns:

Type Description
object

pydeck.Deck object.

Source code in geemap/deck.py
class Map(pdk.Deck):
    """The Map class inherits pydeck.Deck.

    Returns:
        object: pydeck.Deck object.
    """

    def __init__(self, center=(20, 0), zoom=1.2, height=800, width=None, **kwargs):
        """Initialize a Map object.

        Args:
            center (tuple, optional): Center of the map in the format of (lat, lon). Defaults to (20, 0).
            zoom (int, optional): The map zoom level. Defaults to 1.2.
            height (int, optional): The map height. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to 800.
            width (int, optional): The map width. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to None.
        """
        # Authenticates Earth Engine and initializes an Earth Engine session
        if "ee_initialize" not in kwargs.keys():
            kwargs["ee_initialize"] = True

        if kwargs["ee_initialize"]:
            ee_initialize()

        kwargs.pop("ee_initialize")

        if "initial_view_state" not in kwargs:
            kwargs["initial_view_state"] = pdk.ViewState(
                latitude=center[0],
                longitude=center[1],
                zoom=zoom,
                height=height,
                width=width,
            )

        if "map_style" not in kwargs:
            kwargs["map_style"] = "light"

        super().__init__(**kwargs)

    def add_layer(self, layer, layer_name=None, **kwargs):
        """Add a layer to the map.

        Args:
            layer (pydeck.Layer): A pydeck Layer object.
        """

        try:

            if isinstance(layer, str) and layer.startswith("http"):
                pdk.settings.custom_libraries = [
                    {
                        "libraryName": "MyTileLayerLibrary",
                        "resourceUri": "https://cdn.jsdelivr.net/gh/giswqs/pydeck_myTileLayer@master/dist/bundle.js",
                    }
                ]
                layer = pdk.Layer("MyTileLayer", layer, id=layer_name)

            self.layers.append(layer)
        except Exception as e:
            raise Exception(e)

    def add_ee_layer(
        self, ee_object, vis_params={}, name=None, shown=True, opacity=1.0, **kwargs
    ):
        """Adds a given EE object to the map as a layer.

        Args:
            ee_object (Collection|Feature|Image|MapId): The object to add to the map.
            vis_params (dict, optional): The visualization parameters. Defaults to {}.
            name (str, optional): The name of the layer. Defaults to 'Layer N'.
            shown (bool, optional): A flag indicating whether the layer should be on by default. Defaults to True.
            opacity (float, optional): The layer's opacity represented as a number between 0 and 1. Defaults to 1.
        """
        import ee
        from box import Box

        image = None

        if vis_params is None:
            vis_params = {}

        if name is None:
            layer_count = len(self.layers)
            name = "Layer " + str(layer_count + 1)

        if (
            not isinstance(ee_object, ee.Image)
            and not isinstance(ee_object, ee.ImageCollection)
            and not isinstance(ee_object, ee.FeatureCollection)
            and not isinstance(ee_object, ee.Feature)
            and not isinstance(ee_object, ee.Geometry)
        ):
            err_str = "\n\nThe image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection."
            raise AttributeError(err_str)

        if (
            isinstance(ee_object, ee.geometry.Geometry)
            or isinstance(ee_object, ee.feature.Feature)
            or isinstance(ee_object, ee.featurecollection.FeatureCollection)
        ):
            features = ee.FeatureCollection(ee_object)

            width = 2

            if "width" in vis_params:
                width = vis_params["width"]

            color = "000000"

            if "color" in vis_params:
                color = vis_params["color"]

            image_fill = features.style(**{"fillColor": color}).updateMask(
                ee.Image.constant(0.5)
            )
            image_outline = features.style(
                **{"color": color, "fillColor": "00000000", "width": width}
            )

            image = image_fill.blend(image_outline)
        elif isinstance(ee_object, ee.image.Image):
            image = ee_object
        elif isinstance(ee_object, ee.imagecollection.ImageCollection):
            image = ee_object.mosaic()

        if "palette" in vis_params:
            if isinstance(vis_params["palette"], tuple):
                vis_params["palette"] = list(vis_params["palette"])
            if isinstance(vis_params["palette"], Box):
                try:
                    vis_params["palette"] = vis_params["palette"]["default"]
                except Exception as e:
                    print("The provided palette is invalid.")
                    raise Exception(e)
            elif isinstance(vis_params["palette"], str):
                vis_params["palette"] = check_cmap(vis_params["palette"])
            elif not isinstance(vis_params["palette"], list):
                raise ValueError(
                    "The palette must be a list of colors or a string or a Box object."
                )

        map_id_dict = ee.Image(image).getMapId(vis_params)
        url = map_id_dict["tile_fetcher"].url_format
        self.add_layer(url, layer_name=name, **kwargs)

    addLayer = add_ee_layer

    def add_basemap(self, basemap="HYBRID"):
        """Adds a basemap to the map.

        Args:
            basemap (str): Can be one of string from pydeck_basemaps. Defaults to 'HYBRID'.
        """
        import xyzservices

        try:
            if isinstance(basemap, xyzservices.TileProvider):
                name = basemap.name
                url = basemap.build_url()
                self.add_layer(url, name)

            elif basemap in basemaps:

                pdk.settings.custom_libraries = [
                    {
                        "libraryName": "MyTileLayerLibrary",
                        "resourceUri": "https://cdn.jsdelivr.net/gh/giswqs/pydeck_myTileLayer@master/dist/bundle.js",
                    }
                ]
                layer = pdk.Layer("MyTileLayer", basemaps[basemap].url, basemap)

                self.add_layer(layer)

            else:
                print(
                    "Basemap can only be one of the following:\n  {}".format(
                        "\n  ".join(basemaps.keys())
                    )
                )

        except Exception:
            raise ValueError(
                "Basemap can only be one of the following:\n  {}".format(
                    "\n  ".join(basemaps.keys())
                )
            )

    def add_gdf(self, gdf, layer_name=None, random_color_column=None, **kwargs):
        """Adds a GeoPandas GeoDataFrame to the map.

        Args:
            gdf (GeoPandas.GeoDataFrame): The GeoPandas GeoDataFrame to add to the map.
            layer_name (str, optional): The layer name to be used. Defaults to None.
            random_color_column (str, optional): The column name to use for random color. Defaults to None.

        Raises:
            TypeError: gdf must be a GeoPandas GeoDataFrame.
        """

        try:
            import geopandas as gpd

            if not isinstance(gdf, gpd.GeoDataFrame):
                raise TypeError("gdf must be a GeoPandas GeoDataFrame.")

            if layer_name is None:
                layer_name = "layer_" + random_string(3)

            if "pickable" not in kwargs:
                kwargs["pickable"] = True
            if "opacity" not in kwargs:
                kwargs["opacity"] = 0.5
            if "stroked" not in kwargs:
                kwargs["stroked"] = True
            if "filled" not in kwargs:
                kwargs["filled"] = True
            if "extruded" not in kwargs:
                kwargs["extruded"] = False
            if "wireframe" not in kwargs:
                kwargs["wireframe"] = True
            if "get_line_color" not in kwargs:
                kwargs["get_line_color"] = [0, 0, 0]
            if "get_line_width" not in kwargs:
                kwargs["get_line_width"] = 2
            if "line_width_min_pixels" not in kwargs:
                kwargs["line_width_min_pixels"] = 1

            if random_color_column is not None:
                if random_color_column not in gdf.columns.values.tolist():
                    raise ValueError(
                        "The random_color_column provided does not exist in the vector file."
                    )
                color_lookup = pdk.data_utils.assign_random_colors(
                    gdf[random_color_column]
                )
                gdf["color"] = gdf.apply(
                    lambda row: color_lookup.get(row[random_color_column]), axis=1
                )
                kwargs["get_fill_color"] = "color"

            layer = pdk.Layer(
                "GeoJsonLayer",
                gdf,
                id=layer_name,
                **kwargs,
            )
            self.add_layer(layer)

        except Exception as e:
            raise Exception(e)

    def add_vector(self, filename, layer_name=None, random_color_column=None, **kwargs):
        """Adds a vector file to the map.

        Args:
            filename (str): The input file path to the vector dataset.
            layer_name (str, optional): The layer name to be used. Defaults to None.
            random_color_column (str, optional): The column name to use for random color. Defaults to None.

        Raises:
            FileNotFoundError: The provided vector file could not be found.
        """

        try:

            import geopandas as gpd

            if not filename.startswith("http"):
                filename = os.path.abspath(filename)
                if filename.endswith(".zip"):
                    filename = "zip://" + filename

            if filename.endswith(".kml"):
                gpd.io.file.fiona.drvsupport.supported_drivers["KML"] = "rw"
                gdf = gpd.read_file(filename, driver="KML")
            else:
                gdf = gpd.read_file(filename)

            self.add_gdf(gdf, layer_name, random_color_column, **kwargs)

        except Exception as e:
            raise Exception(e)

    def add_geojson(
        self, filename, layer_name=None, random_color_column=None, **kwargs
    ):
        """Adds a GeoJSON file to the map.

        Args:
            filename (str): The input file path to the vector dataset.
            layer_name (str, optional): The layer name to be used. Defaults to None.
            random_color_column (str, optional): The column name to use for random color. Defaults to None.

        Raises:
            FileNotFoundError: The provided vector file could not be found.
        """
        self.add_vector(filename, layer_name, random_color_column, **kwargs)

    def add_shp(self, filename, layer_name=None, random_color_column=None, **kwargs):
        """Adds a shapefile to the map.

        Args:
            filename (str): The input file path to the vector dataset.
            layer_name (str, optional): The layer name to be used. Defaults to None.
            random_color_column (str, optional): The column name to use for random color. Defaults to None.

        Raises:
            FileNotFoundError: The provided vector file could not be found.
        """
        self.add_vector(filename, layer_name, random_color_column, **kwargs)

    def add_kml(self, filename, layer_name=None, random_color_column=None, **kwargs):
        """Adds a KML file to the map.

        Args:
            filename (str): The input file path to the vector dataset.
            layer_name (str, optional): The layer name to be used. Defaults to None.
            random_color_column (str, optional): The column name to use for random color. Defaults to None.

        Raises:
            FileNotFoundError: The provided vector file could not be found.
        """
        self.add_vector(filename, layer_name, random_color_column, **kwargs)

__init__(self, center=(20, 0), zoom=1.2, height=800, width=None, **kwargs) special

Initialize a Map object.

Parameters:

Name Type Description Default
center tuple

Center of the map in the format of (lat, lon). Defaults to (20, 0).

(20, 0)
zoom int

The map zoom level. Defaults to 1.2.

1.2
height int

The map height. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to 800.

800
width int

The map width. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to None.

None
Source code in geemap/deck.py
def __init__(self, center=(20, 0), zoom=1.2, height=800, width=None, **kwargs):
    """Initialize a Map object.

    Args:
        center (tuple, optional): Center of the map in the format of (lat, lon). Defaults to (20, 0).
        zoom (int, optional): The map zoom level. Defaults to 1.2.
        height (int, optional): The map height. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to 800.
        width (int, optional): The map width. Note that the height has no effect in Jupyter notebook. Only works for streamlit. Defaults to None.
    """
    # Authenticates Earth Engine and initializes an Earth Engine session
    if "ee_initialize" not in kwargs.keys():
        kwargs["ee_initialize"] = True

    if kwargs["ee_initialize"]:
        ee_initialize()

    kwargs.pop("ee_initialize")

    if "initial_view_state" not in kwargs:
        kwargs["initial_view_state"] = pdk.ViewState(
            latitude=center[0],
            longitude=center[1],
            zoom=zoom,
            height=height,
            width=width,
        )

    if "map_style" not in kwargs:
        kwargs["map_style"] = "light"

    super().__init__(**kwargs)

addLayer(self, ee_object, vis_params={}, name=None, shown=True, opacity=1.0, **kwargs)

Adds a given EE object to the map as a layer.

Parameters:

Name Type Description Default
ee_object Collection|Feature|Image|MapId

The object to add to the map.

required
vis_params dict

The visualization parameters. Defaults to {}.

{}
name str

The name of the layer. Defaults to 'Layer N'.

None
shown bool

A flag indicating whether the layer should be on by default. Defaults to True.

True
opacity float

The layer's opacity represented as a number between 0 and 1. Defaults to 1.

1.0
Source code in geemap/deck.py
def add_ee_layer(
    self, ee_object, vis_params={}, name=None, shown=True, opacity=1.0, **kwargs
):
    """Adds a given EE object to the map as a layer.

    Args:
        ee_object (Collection|Feature|Image|MapId): The object to add to the map.
        vis_params (dict, optional): The visualization parameters. Defaults to {}.
        name (str, optional): The name of the layer. Defaults to 'Layer N'.
        shown (bool, optional): A flag indicating whether the layer should be on by default. Defaults to True.
        opacity (float, optional): The layer's opacity represented as a number between 0 and 1. Defaults to 1.
    """
    import ee
    from box import Box

    image = None

    if vis_params is None:
        vis_params = {}

    if name is None:
        layer_count = len(self.layers)
        name = "Layer " + str(layer_count + 1)

    if (
        not isinstance(ee_object, ee.Image)
        and not isinstance(ee_object, ee.ImageCollection)
        and not isinstance(ee_object, ee.FeatureCollection)
        and not isinstance(ee_object, ee.Feature)
        and not isinstance(ee_object, ee.Geometry)
    ):
        err_str = "\n\nThe image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection."
        raise AttributeError(err_str)

    if (
        isinstance(ee_object, ee.geometry.Geometry)
        or isinstance(ee_object, ee.feature.Feature)
        or isinstance(ee_object, ee.featurecollection.FeatureCollection)
    ):
        features = ee.FeatureCollection(ee_object)

        width = 2

        if "width" in vis_params:
            width = vis_params["width"]

        color = "000000"

        if "color" in vis_params:
            color = vis_params["color"]

        image_fill = features.style(**{"fillColor": color}).updateMask(
            ee.Image.constant(0.5)
        )
        image_outline = features.style(
            **{"color": color, "fillColor": "00000000", "width": width}
        )

        image = image_fill.blend(image_outline)
    elif isinstance(ee_object, ee.image.Image):
        image = ee_object
    elif isinstance(ee_object, ee.imagecollection.ImageCollection):
        image = ee_object.mosaic()

    if "palette" in vis_params:
        if isinstance(vis_params["palette"], tuple):
            vis_params["palette"] = list(vis_params["palette"])
        if isinstance(vis_params["palette"], Box):
            try:
                vis_params["palette"] = vis_params["palette"]["default"]
            except Exception as e:
                print("The provided palette is invalid.")
                raise Exception(e)
        elif isinstance(vis_params["palette"], str):
            vis_params["palette"] = check_cmap(vis_params["palette"])
        elif not isinstance(vis_params["palette"], list):
            raise ValueError(
                "The palette must be a list of colors or a string or a Box object."
            )

    map_id_dict = ee.Image(image).getMapId(vis_params)
    url = map_id_dict["tile_fetcher"].url_format
    self.add_layer(url, layer_name=name, **kwargs)

add_basemap(self, basemap='HYBRID')

Adds a basemap to the map.

Parameters:

Name Type Description Default
basemap str

Can be one of string from pydeck_basemaps. Defaults to 'HYBRID'.

'HYBRID'
Source code in geemap/deck.py
def add_basemap(self, basemap="HYBRID"):
    """Adds a basemap to the map.

    Args:
        basemap (str): Can be one of string from pydeck_basemaps. Defaults to 'HYBRID'.
    """
    import xyzservices

    try:
        if isinstance(basemap, xyzservices.TileProvider):
            name = basemap.name
            url = basemap.build_url()
            self.add_layer(url, name)

        elif basemap in basemaps:

            pdk.settings.custom_libraries = [
                {
                    "libraryName": "MyTileLayerLibrary",
                    "resourceUri": "https://cdn.jsdelivr.net/gh/giswqs/pydeck_myTileLayer@master/dist/bundle.js",
                }
            ]
            layer = pdk.Layer("MyTileLayer", basemaps[basemap].url, basemap)

            self.add_layer(layer)

        else:
            print(
                "Basemap can only be one of the following:\n  {}".format(
                    "\n  ".join(basemaps.keys())
                )
            )

    except Exception:
        raise ValueError(
            "Basemap can only be one of the following:\n  {}".format(
                "\n  ".join(basemaps.keys())
            )
        )

add_ee_layer(self, ee_object, vis_params={}, name=None, shown=True, opacity=1.0, **kwargs)

Adds a given EE object to the map as a layer.

Parameters:

Name Type Description Default
ee_object Collection|Feature|Image|MapId

The object to add to the map.

required
vis_params dict

The visualization parameters. Defaults to {}.

{}
name str

The name of the layer. Defaults to 'Layer N'.

None
shown bool

A flag indicating whether the layer should be on by default. Defaults to True.

True
opacity float

The layer's opacity represented as a number between 0 and 1. Defaults to 1.

1.0
Source code in geemap/deck.py
def add_ee_layer(
    self, ee_object, vis_params={}, name=None, shown=True, opacity=1.0, **kwargs
):
    """Adds a given EE object to the map as a layer.

    Args:
        ee_object (Collection|Feature|Image|MapId): The object to add to the map.
        vis_params (dict, optional): The visualization parameters. Defaults to {}.
        name (str, optional): The name of the layer. Defaults to 'Layer N'.
        shown (bool, optional): A flag indicating whether the layer should be on by default. Defaults to True.
        opacity (float, optional): The layer's opacity represented as a number between 0 and 1. Defaults to 1.
    """
    import ee
    from box import Box

    image = None

    if vis_params is None:
        vis_params = {}

    if name is None:
        layer_count = len(self.layers)
        name = "Layer " + str(layer_count + 1)

    if (
        not isinstance(ee_object, ee.Image)
        and not isinstance(ee_object, ee.ImageCollection)
        and not isinstance(ee_object, ee.FeatureCollection)
        and not isinstance(ee_object, ee.Feature)
        and not isinstance(ee_object, ee.Geometry)
    ):
        err_str = "\n\nThe image argument in 'addLayer' function must be an instance of one of ee.Image, ee.Geometry, ee.Feature or ee.FeatureCollection."
        raise AttributeError(err_str)

    if (
        isinstance(ee_object, ee.geometry.Geometry)
        or isinstance(ee_object, ee.feature.Feature)
        or isinstance(ee_object, ee.featurecollection.FeatureCollection)
    ):
        features = ee.FeatureCollection(ee_object)

        width = 2

        if "width" in vis_params:
            width = vis_params["width"]

        color = "000000"

        if "color" in vis_params:
            color = vis_params["color"]

        image_fill = features.style(**{"fillColor": color}).updateMask(
            ee.Image.constant(0.5)
        )
        image_outline = features.style(
            **{"color": color, "fillColor": "00000000", "width": width}
        )

        image = image_fill.blend(image_outline)
    elif isinstance(ee_object, ee.image.Image):
        image = ee_object
    elif isinstance(ee_object, ee.imagecollection.ImageCollection):
        image = ee_object.mosaic()

    if "palette" in vis_params:
        if isinstance(vis_params["palette"], tuple):
            vis_params["palette"] = list(vis_params["palette"])
        if isinstance(vis_params["palette"], Box):
            try:
                vis_params["palette"] = vis_params["palette"]["default"]
            except Exception as e:
                print("The provided palette is invalid.")
                raise Exception(e)
        elif isinstance(vis_params["palette"], str):
            vis_params["palette"] = check_cmap(vis_params["palette"])
        elif not isinstance(vis_params["palette"], list):
            raise ValueError(
                "The palette must be a list of colors or a string or a Box object."
            )

    map_id_dict = ee.Image(image).getMapId(vis_params)
    url = map_id_dict["tile_fetcher"].url_format
    self.add_layer(url, layer_name=name, **kwargs)

add_gdf(self, gdf, layer_name=None, random_color_column=None, **kwargs)

Adds a GeoPandas GeoDataFrame to the map.

Parameters:

Name Type Description Default
gdf GeoPandas.GeoDataFrame

The GeoPandas GeoDataFrame to add to the map.

required
layer_name str

The layer name to be used. Defaults to None.

None
random_color_column str

The column name to use for random color. Defaults to None.

None

Exceptions:

Type Description
TypeError

gdf must be a GeoPandas GeoDataFrame.

Source code in geemap/deck.py
def add_gdf(self, gdf, layer_name=None, random_color_column=None, **kwargs):
    """Adds a GeoPandas GeoDataFrame to the map.

    Args:
        gdf (GeoPandas.GeoDataFrame): The GeoPandas GeoDataFrame to add to the map.
        layer_name (str, optional): The layer name to be used. Defaults to None.
        random_color_column (str, optional): The column name to use for random color. Defaults to None.

    Raises:
        TypeError: gdf must be a GeoPandas GeoDataFrame.
    """

    try:
        import geopandas as gpd

        if not isinstance(gdf, gpd.GeoDataFrame):
            raise TypeError("gdf must be a GeoPandas GeoDataFrame.")

        if layer_name is None:
            layer_name = "layer_" + random_string(3)

        if "pickable" not in kwargs:
            kwargs["pickable"] = True
        if "opacity" not in kwargs:
            kwargs["opacity"] = 0.5
        if "stroked" not in kwargs:
            kwargs["stroked"] = True
        if "filled" not in kwargs:
            kwargs["filled"] = True
        if "extruded" not in kwargs:
            kwargs["extruded"] = False
        if "wireframe" not in kwargs:
            kwargs["wireframe"] = True
        if "get_line_color" not in kwargs:
            kwargs["get_line_color"] = [0, 0, 0]
        if "get_line_width" not in kwargs:
            kwargs["get_line_width"] = 2
        if "line_width_min_pixels" not in kwargs:
            kwargs["line_width_min_pixels"] = 1

        if random_color_column is not None:
            if random_color_column not in gdf.columns.values.tolist():
                raise ValueError(
                    "The random_color_column provided does not exist in the vector file."
                )
            color_lookup = pdk.data_utils.assign_random_colors(
                gdf[random_color_column]
            )
            gdf["color"] = gdf.apply(
                lambda row: color_lookup.get(row[random_color_column]), axis=1
            )
            kwargs["get_fill_color"] = "color"

        layer = pdk.Layer(
            "GeoJsonLayer",
            gdf,
            id=layer_name,
            **kwargs,
        )
        self.add_layer(layer)

    except Exception as e:
        raise Exception(e)

add_geojson(self, filename, layer_name=None, random_color_column=None, **kwargs)

Adds a GeoJSON file to the map.

Parameters:

Name Type Description Default
filename str

The input file path to the vector dataset.

required
layer_name str

The layer name to be used. Defaults to None.

None
random_color_column str

The column name to use for random color. Defaults to None.

None

Exceptions:

Type Description
FileNotFoundError

The provided vector file could not be found.

Source code in geemap/deck.py
def add_geojson(
    self, filename, layer_name=None, random_color_column=None, **kwargs
):
    """Adds a GeoJSON file to the map.

    Args:
        filename (str): The input file path to the vector dataset.
        layer_name (str, optional): The layer name to be used. Defaults to None.
        random_color_column (str, optional): The column name to use for random color. Defaults to None.

    Raises:
        FileNotFoundError: The provided vector file could not be found.
    """
    self.add_vector(filename, layer_name, random_color_column, **kwargs)

add_kml(self, filename, layer_name=None, random_color_column=None, **kwargs)

Adds a KML file to the map.

Parameters:

Name Type Description Default
filename str

The input file path to the vector dataset.

required
layer_name str

The layer name to be used. Defaults to None.

None
random_color_column str

The column name to use for random color. Defaults to None.

None

Exceptions:

Type Description
FileNotFoundError

The provided vector file could not be found.

Source code in geemap/deck.py
def add_kml(self, filename, layer_name=None, random_color_column=None, **kwargs):
    """Adds a KML file to the map.

    Args:
        filename (str): The input file path to the vector dataset.
        layer_name (str, optional): The layer name to be used. Defaults to None.
        random_color_column (str, optional): The column name to use for random color. Defaults to None.

    Raises:
        FileNotFoundError: The provided vector file could not be found.
    """
    self.add_vector(filename, layer_name, random_color_column, **kwargs)

add_layer(self, layer, layer_name=None, **kwargs)

Add a layer to the map.

Parameters:

Name Type Description Default
layer pydeck.Layer

A pydeck Layer object.

required
Source code in geemap/deck.py
def add_layer(self, layer, layer_name=None, **kwargs):
    """Add a layer to the map.

    Args:
        layer (pydeck.Layer): A pydeck Layer object.
    """

    try:

        if isinstance(layer, str) and layer.startswith("http"):
            pdk.settings.custom_libraries = [
                {
                    "libraryName": "MyTileLayerLibrary",
                    "resourceUri": "https://cdn.jsdelivr.net/gh/giswqs/pydeck_myTileLayer@master/dist/bundle.js",
                }
            ]
            layer = pdk.Layer("MyTileLayer", layer, id=layer_name)

        self.layers.append(layer)
    except Exception as e:
        raise Exception(e)

add_shp(self, filename, layer_name=None, random_color_column=None, **kwargs)

Adds a shapefile to the map.

Parameters:

Name Type Description Default
filename str

The input file path to the vector dataset.

required
layer_name str

The layer name to be used. Defaults to None.

None
random_color_column str

The column name to use for random color. Defaults to None.

None

Exceptions:

Type Description
FileNotFoundError

The provided vector file could not be found.

Source code in geemap/deck.py
def add_shp(self, filename, layer_name=None, random_color_column=None, **kwargs):
    """Adds a shapefile to the map.

    Args:
        filename (str): The input file path to the vector dataset.
        layer_name (str, optional): The layer name to be used. Defaults to None.
        random_color_column (str, optional): The column name to use for random color. Defaults to None.

    Raises:
        FileNotFoundError: The provided vector file could not be found.
    """
    self.add_vector(filename, layer_name, random_color_column, **kwargs)

add_vector(self, filename, layer_name=None, random_color_column=None, **kwargs)

Adds a vector file to the map.

Parameters:

Name Type Description Default
filename str

The input file path to the vector dataset.

required
layer_name str

The layer name to be used. Defaults to None.

None
random_color_column str

The column name to use for random color. Defaults to None.

None

Exceptions:

Type Description
FileNotFoundError

The provided vector file could not be found.

Source code in geemap/deck.py
def add_vector(self, filename, layer_name=None, random_color_column=None, **kwargs):
    """Adds a vector file to the map.

    Args:
        filename (str): The input file path to the vector dataset.
        layer_name (str, optional): The layer name to be used. Defaults to None.
        random_color_column (str, optional): The column name to use for random color. Defaults to None.

    Raises:
        FileNotFoundError: The provided vector file could not be found.
    """

    try:

        import geopandas as gpd

        if not filename.startswith("http"):
            filename = os.path.abspath(filename)
            if filename.endswith(".zip"):
                filename = "zip://" + filename

        if filename.endswith(".kml"):
            gpd.io.file.fiona.drvsupport.supported_drivers["KML"] = "rw"
            gdf = gpd.read_file(filename, driver="KML")
        else:
            gdf = gpd.read_file(filename)

        self.add_gdf(gdf, layer_name, random_color_column, **kwargs)

    except Exception as e:
        raise Exception(e)

Last update: 2022-09-24
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